//实现地图拖拽
cc.Class({
	extends: cc.Component,

	properties: {
		
	},

	// LIFE-CYCLE CALLBACKS:

	// onLoad() {



	// 	let nodeBack = this.node; //地图节点
	// 	var size = this.node.getContentSize();
	// 	let rangeX = cc.winSize.width; //容器可视宽度、这里默认屏幕大小为容器宽度
	// 	let rangeY = cc.winSize.height; //容器可视高度、这里默认屏幕大小为容器高度
		
		
	// 	nodeBack.on(cc.Node.EventType.TOUCH_MOVE, function(event) {
		
		
	// 		let dir = event.touch.getDelta();


	// 		nodeBack.x += dir.x;
	// 		nodeBack.y += dir.y;

	// 		let zoneLeft = -rangeX / 2;
	// 		let zoneRight = rangeX / 2;
	// 		let zoneTop = rangeY / 2;
	// 		let zoneBottom = -rangeY / 2;

	// 		let halfMapWidth = nodeBack.width / 2;
	// 		let halfMapHeight = nodeBack.height / 2;

	// 		// 最左边
	// 		if (nodeBack.x - halfMapWidth > zoneLeft) {
	// 			nodeBack.x = zoneLeft + halfMapWidth;
	// 		}
	// 		//最右边
	// 		if (nodeBack.x + halfMapWidth < zoneRight) {
	// 			nodeBack.x = zoneRight - halfMapWidth;
	// 		}
	// 		//最上边
	// 		if (nodeBack.y + halfMapHeight < zoneTop) {
	// 			nodeBack.y = zoneTop - halfMapHeight;
	// 		}
	// 		//最下边
	// 		if (nodeBack.y - halfMapHeight > zoneBottom) {
	// 			nodeBack.y = zoneBottom + halfMapHeight;
	// 		}

	// 	}, this);



	// },

	start() {


	},

	update(dt) {



	},
});
